Sail attachment for bicycles



Aprfiil 21, $1936. A. DEAL SAIL ATTACHMENT FOR BICYCLES 4 Filegd June 15, 1955 2 Sheets-Sheet l Invenlor ll eon Pea Attorney Apzrifi 2L L. A. DEAL SAIL ATTACHMENT FOR BICYCLES Filed June 15, 1955 2 Sheets-Sheet 2 Patented Apr. 21, 1936 I l I v I 2,038,166'

UNITED STATES PATENT OFFICE SAIL ATTACHMENT FOR BICYGLES LeonAndrew Deal, Beloit, Wis.

Application June 13, 1935, Serial No. 26,487

3 Claims. (Cl. 20823) The present invention relates to new and useful nuts (not shown) are to secure the uprights 2 on improvements in sail attachments for bicycles the shanks 28. The supporting structure I fur and has for one of its important objects to prother includes a rearwardly projecting arm 6, said vide,.in a manner as hereinafter set forth, a dearm '6 comprising spaced legs 'I which straddle vice of this character which may be expeditiously th rea h l 8 fthe bicycle 5 d whi h are 5 mounted on a conventional bicycle without the connected to the lower portions of the uprights 2. necessity of altering said bicycle structurally in Braces 9 extend between the legs I and the upany way. rights 2. The legs I are further provided with a Another very important object of the invention connecting brace I i]. 10 is to provide a sail attachment of the aforemen- The upper end portions of the uprights 2 are 10 tioned character which, when not in use, may be spaced from each other for the reception therefolded ina manner to require aminimum of space. between of a mast II. The mast II is mounted Other objects of the invention are to provide for swinging movement in a vertical plane on a a sail attachment for bicycles which will be co-mrod I2 which extends between the uprights 2. A 5 paratively simple in construction, strong, durable, removable bolt I3 releasably secures the mast I I highly efficient and reliable in use, compact, in raised or operative position. light in weight and which may be manufactured Also extending between the uprights 2, below at low cost. the mast II, is a bar I4. A brace I6 is secured, All Of the foregoing d Still furt er Objects at one end, beneath the bar I4 by a bolt I5 and and advantages of the invention will become apat its other end to a threaded shank 29 on a parent from a study of the following specification, bracket I'I, said bracket ll being secured on the taken in connection with the accompanying drawusual bolt 3| (see Figure 7) which clamps the ings wherein like characters of reference desigpost I9 of the seat 28 in adjusted position in the nate corresponding parts throughout the several frame I8. views, and wherein: The reference numeral 2| designates a boom 5 Figure l is a View in side elevation of the inwhich is mounted for swinging movement on the vention, showing the same removed from the supporting structure I adjacent the rearwardly bicycle. extending arm 6, said boom including an arcuate Figure 2 is a View .in side elevation of the rear forward portion 22 which accommodates the rear portion of abicycle, showing the brackets through bicycle wheel 8 and which is journaled on the 30 the medium of which the invention is attached bolt I5 (see Figure 7). The mast II and the boom to said bicycle. 2| carry the sail 23. A control rope or the like Figure 3 is a detail view in perspective of one 24 is connected to the free end of the boom 2|, of the attaching brackets. said rope being slidable in guides 25 on the sup- Figure 4 is a perspective view of the supporting porting structure I and being adapted to be an- 35 structure. chored to one'of the uprights 2 of said support- Figure 5 is a detail view in perspective of the ing structure, as at 26. boom. It is believed that the operation of the inven- Figure 6 is a view in horizontal section, taken tion will be readily apparent from a considera- 40 substantially on the line 66 of Figure 2. tion of the foregoing. The wind, of course, im- 40 Figure '7 is a vertical sectional view, taken subpinges the sail 23 for propelling the bicycle 5. stantially on the line 'I'I of Figure 4. The swinging boom 2| permits sufficient play of Referring now to the drawings in detail, it will the sail for maximum efiiciency, the degree of be seen that the embodiment of the invention movement of said boom being controlled as dewhich has been illustrated comprises a supportsired through the medium of the rope 24. To ing structure which is designated generally by the detach the device from the bicycle, it is only necreference numeral I, said supporting structure essary to remove the supporting structure I from including a pair of converging uprights 2 which the brackets 3 and IT, or if desired, said brackare secured, at their lower ends, through the me ets may be expeditiously removed by simply redium of brackets 3 on the end portions of the moving the usual axle securing and seat post 50 rear axle l of the bicycle, said bicycle being desclamping nuts 32 and 33, respectively. It may ignated generally by the reference numeral 5. be well to here state that the bracket I1 is simi- The uprights 2 are provided with openings 21 in lar in construction to the brackets 3. The brace their lower end portions for the reception of I6 is provided with an opening 30 which receives threaded shanks 28 on the brackets 3. Of course, the shank 29. When the device is not in use 55 the mast I I may be swung downwardly to a point adjacent the boom 2| by simply removing the bolt l3.

It is believed that the many advantages of a sail attachment for bicycles in accordance with the present invention will be readily understood, and although a preferred embodiment of the device is as illustrated and described, it is to be understood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall within the scope of the invention as claimed.

What is claimed is:

1. A sail attachment for bicycles comprising a supporting structure mounted on the bicycle, said supporting structure including a pair of spaced uprights, a mast mounted for swinging movement in a vertical plane between the uprights, means for releasably securing the mast in vertical position, a boom mounted for swinging movement in a horizontal plane on the uprights, and a sail mounted on the mast and the boom.

2. A sail attachment for bicycles comprising a supporting structure mounted on the bicycle, said supporting structure including a pair of spaced, upwardly converging uprights, said supporting structure further including a rearwardly projecting arm comprising spaced legs connected to the lower portions of the uprights, a mast mounted for swinging movement in a vertical plane between the upper portions of the uprights, means for releasably securing the mast in operative position, a boom mounted between the uprights for swinging movement in a horizontal plane, a sail mounted on the mast and the boom, and a flexible element slidably mounted on the arm and connected to the free end of the boom for limiting the swinging movement of said boom.

3. A sail attachment for bicycles of the type including a frame, a rear axle, and a rear wheel journaled on said axle, comprising a supporting structure, said supporting structure including a pair of spaced, upwardly converging uprights secured, at their lower ends, to the end portions of the axle, means connecting the upper portions of the uprights to the frame, said uprights extending on opposite sides of the wheel, a mast mounted for swinging movement in a vertical plane between the upper end portions of the uprights, means for releasably securing said mast in operative position, a boom mounted for swinging movement in a horizontal plane between the uprights, a sail mounted on the mast and boom, and means for controlling the swinging movement of said boom.

LEON ANDREW DEAL. 

